Home / 39,136.32-54,002.88-22,142.88

Finding the Fourth Proportional to 39,136.32, 54,002.88 and 22,142.88

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Solution

The fourth proportional to 39,136.32, 54,002.88 and 22,142.88 is: 30,554.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,136.32 : 54,002.88 = 22,142.88 : x
  2. Step 2: Convert to fraction form
    39,136.32/54,002.88 = 22,142.88/x
  3. Step 3: Cross multiply
    39,136.32x = 54,002.88 × 22,142.88
  4. Step 4: Simplify right side
    39,136.32x = 1,195,779,291.49
  5. Step 5: Solve for x
    x = 1,195,779,291.49/39,136.32
  6. Step 6: Final answer
    x = 30,554.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.